Brake for vehicles.



D. P. WEIR.

BRAKE FOR VEHICLES.

APPLICATION FILED ocT. 28, 1913.

Patented Apr. 6, 1915.

3 SHEETS-SHEET 1.

WITNESSES g 9 W W QM F 221:7

' BY I I WTTORNEY D. P. WEIR.

BRAKE FOR VEHICLES.

APPLICATION FILED 0cT.'2a. 1913.

1,1 34, 570. Patented Apr. 6, 1915.

8 SHEETS-SHEET 2.

Ii!illIllIllllllllllllllllllllll Fi .5 EL M] WITNESSES WWW/WWW 1.9M W W THE NORRIS PETERS c0. PHDTO-LITHOU WASHINGTON. o. c

D. P. WEIR.

BRAKE FOR VEHICLES.

APPLICATION FILED 0CT.28, I913.

3 SHEETSBHBBT 3.

1,134,570. Patented Apr. 6, 1915.

WITNESSES ENTOR M/IWTORNEY THE NORRIS PETERS 50., PHoTcrLIIHOvv WASHINGTON. D. C,

UNT

DAVID 1 WEIR, or RATHDRUM, IDAHO. I

BRAKE FOR VEHICLES.

Specification of Letters Patent.

' Patented Apr. 6, 1915.

Application filed October 28, 1913. Serial No. 797,915.

To all whom it may concern: 7

Be it knownthat I, DAVID P. WEIR, a citizen of the United States of America, residing at Rathdrum, in the county of Kootenai and State of Idaho, have invented certain new and useful Improvements in Brakes for Vehicles, of which the following is a specification. V

This invention pertains to vehicle brakes. The primary object of the invention is to provide a vehicle brake which is economical in construction and reliable in operation.

The invention belongs to that class of brakes where the vehicle tongue is slidable between the hounds of the vehicle, as when drawing down an incline, the brakes in such case engage the wheels automatically, the rearward movement of the tongue being caused by the hold back action of the team.

The invention has reference to certain novel features fully explained herein and include shoes adapted to come in contact 'with the tires of the wheels to effectually check the rotation of the same, a rotating mechanism to operate the same and a' governor to throw the rotating mechanism in and out of gear. The mechanism is adapted for setting the brakes, both when the team is ascending a grade with the vehicle,

to allow the team to rest, and when descending a grade to check the descent of the vehicle.

. \Vith these and other objectsin view, the i 85 invention consists of the combination and arrangement of parts as described herein,

pointed out in the claims and illustrated in the drawings in which,

Figure 1 1s a top plan view of a wagon i truck with the brake mechanism attached,

Fig. 2, is a sectional view taken on the line 22 of Fig. 1, Fig. 3, is a side elevation of Fig. 1, Fig. 4, is a view of the governing mechanism attached to the rear axle together with a gear at each end thereof, Fig. 5 is a disassembled view of Fig. 4, with the gears and the rotatable sleeve omitted, Fig. 6, is a side view of the locking mechanism and coiiperating gears,Fig. 7, is a detail view of a plate entering into the construction of Fig. 6, Fig. 8, is a view of the locking mechanism shown in Fig. 6, the same being incased and having attached thereto its supporting mechanism and governing apparatus, Fig. 9, is an end view of Fig. 6, Fig. 10, is a detail view of the larger gear shown in Fig. 6, incased in a shield, Fig. 11, is a view of a section of the wagon reach containing an illustration of the manner of transmitting the movement from the friction clutch to the brake beam, Fig. 12, is a broken-away View of the rear axle showing a reversing mechanism used in connection with the governing construction, Fig. 13, is an enlarged detail view of the reversing guide, and Fig. 14, is a detail view of one of the locking bolts used in the construction of the locking device together with an arm attached thereto as a means whereby the same is operated. i

I have shown a wagon truck 15 having a tongue 16 (Fig. 1) provided with wings 16 secured between the hounds17 by means of a pin 18, the hounds 17 being secured to the front axle 19. The sides of the tongue 16 are provided with dogs 20 adapted for engagement with notches 21 in the wings 16 The tongue 16 is slidably adjusted to the pin 18 by means of the horizontally arranged slot 22 in the tongue 16. Rotatably attached to the pin 18 adjacent to the tongue 16 is a block- 23 to the opposite sides of which are secured cables 24 and 25. Cut

into the'block 23 is a slot 26. Extending i from the tongue 16 and reaching into the slot 26 is a pin 27.

Suspended from the reach 28, as'at 29,"is the brake beam 30, normally held in the position shown in Fig.1 by the coil spring 31. Attached to the ends of the brake beam 30 and adapted for engagement with the tires 32 of the rear wheels 33, are shoes 34. Attached to the rear axle 35 by means of the brackets 36 is a shaft 37 The shaft 37' is slidable in the. brackets 36. Rigidly secured to each end of the shaft 37 is'a gear 38. Also rigidly secured to the shaft 37 are collars 39 (Fig. 4). Loosely engaging the shaft 37 are plates 39 towhich are rigidly secured as by pins 40 the cylindrical portions 41 and 41 also engaging the shaft 37. Between the cylindrical portions 41 and 41 and rigidly secured thereto, as by the pins 42, is a sleeve 43 also engaging the shaft 37. Loosely engaging the sleeve 43 is a cylindrical cam 44. The sleeve 43 serves as a spool for the cam 44. The cables 24 and 25 leading from the block 23 are held in such a manner that the slot 4:8'is at an inclination (Figs. 12 and 13), said guide block being secured to the front face of the rear axle 50 as by the pin 51 passing through the axle, one of the plates 52 being on each side of the. said axle. Attached. to the inner ends of the hubs 53 of the rear wheels are collars 54 (Fig. 6) having an opening 55 in the center for the passage of the rear hubs 53'. The outer edge off the collars 54 is provided with semi-circular cut outs 56. Engaging the collars 5etare gears 57 meshing with the gears 38" on the shaft 37. Cut-outs 58 are made in the gear wheel 57. Bolts 59 are adapted to fit the semicircular openings 56, the respective parts 54:, and 59 being assembledas shown in F g The bolts (Figs. 6 and 14). have attached thereto, as by the pins 60,.arms. 61, from which extend pins 62. Pinned to the shaft 37 as at 63 (Fig. 4;) are toggles 641 carrying at their outer ends a pair of dogs 65. The plate 6.6 is assembled with the parts show in Fig. 6, the pins 60, (Fig 14) extending through the straight slots 67 thepins62 extending through the oblong curved slots 68.' The toggles 64 extend past the gears 54 with the dogs 65 engaging the pins 62.

Referring'now to the rotatable memberl (Fig. 4), the same has a shoulder 44? normally in the position shown in Rig. 4 and the cylindrical portion 41* hasshoulderstl and in the positions shown Fig. 4 attached to the reach 28 as, at 68 (Fig: is a block 69 (Fig. 11) having. a horizontal cutout 70 in thebottom thereof and'slo ts' 71 on the sides thereof connecting'with the said out-out 70. Within the cut-out 70 is stationed a lever 72 fulcrumed as 211/73 and having lateral extensions 74 to which is'attached the cable 75, the. cable 75 passing through the eyes 76 and across the front of the block To the, bottom of the lever 72 is secured a cable. 7 6 which connectswiththe brake beam 30. as at 77 To the cable 75, as at 7 8, is securedtwo cables 79 and 80 respectively reaching to. and connecting with the pins 81 and 82 respectively on the cylindrical portion 41. i

hen the team hitched to the wagon throws. back its weight on the tongue 16, the same slides backward overthe pin 18 (Fig. 1) and the pin 27 in the slot 26 of the block 23 rotatesthe blocli23 u;'e:eb ..drawing on the cable 24, whichrotates thecam 414, so that the shoulders 44.? amen strike each other'causing the clutch to" expand and engage the collars 3 9, the pin' l7 (Fig. 4) following. the groove 48. (Fig. 12) causing the shaft'37 to shift sidewise'which draws on the toggle '64 changing th'e'position of the dogs 65 (Fig. 4:) thereby carrying thearin 61 with them and tilting the'bolts' 59 to the position shown in Fig. 6. This locks the forward releasing the brakes.

7.9. which carries the lever 72 rearward and the cable 76 draws the brake beam 80 backward setting the shoes 3a against the tires 32 of the rear wheels 33. A forward movement of the tongue 16 reverses the operation and the coil spring 31 draws. the brake beam The guide block 459- may bemanually rotated by the crank 83, connected by the arm 84 to the guide block 49 so'that the groove 48 slopes in the opposite direction and the brakes will be set by'the same mechanism with any movement of the team. the same being useful to permit the teamster to leave the team standing.

Wha I cl m.

11 A'brake for. vehicles, having a tongue .slidablyadjlusted between hounds attached to the fore'truck, comprising a brake beam suspended from the reachof a vehicle and carrying'shoes adapted for engagement with the tires of the wheels of the vehicle, a block rotatablyattached to the side of the tongue, an oblong. slot in said block, a pin attached to the tongue andenga'ging said'slot, two cables attached to said block on opposite sides thereof, a transversely arranged shaft suspended from the rearaxle of the vehicle and adapted to rotate, said shaft carrying a gear at each end thereof, and two cylindrical portions securedfthereto' and a cam rotatable thereon, the cables reaching from the block on the tongue attached to opposite sides'of said cam, a connection between the brakebeam and one of said cylindrical portions attached to said transversely arranged shaft, whereby by the rotation of said shaft the brake beam is carried rearward to bring the shoes thereon in contact with the tires of the wheels of the, vehicle, gears on the rear hubs meshing with the gears on the ends of the said transversely arranged shaft and means for locking and unlocking said gears with collars on the hubs of the rear wheels.

A brake for vehicles, having a tongue slidably adjusted between hounds attached to the fore truck, comprising. a brake beam suspendedfroni thereachfof a vehicle and carrying shoes adapted for engagement with the tires ofthe wheels of the vehicle, a block rotatablyattaclied to the side of the tongue, an oblong slot in .saidblock fa pin attached to the tongae and engaging saidslot, two cables attached to said block on opposite sides thereof, a transversely arranged shaft suspended from the'rearfaxle of the vehicle and adapted to rotate, said shaft carrying a gear at each endthereof, and two cylind rical poi'tions secured theretoand a cam rotatable thereon, the ables -reaching from the block on the tongue attached toopposite "sidesof said cam, a connection between the brake beam and one of said cylindrical portions attached to said transversely arranged shaft,whereby by the rotation of said shaft the brake beam is carried rearward to bring the shoes thereon in contact with the tires of the wheels of the vehicle, gears on the rear hubs meshing with the gears on the ends of the said transversely arranged shaft and means for locking and unlocking said gears with the collars on the hubs of the rear wheels, together with means for returning the brake mechanism to automatically set the brakes 15 on any movement of the wheels.

In testimony whereof I affix my signature in presence of two witnesses.

DAVID P. WEIR.

Witnesses:

HENRY WODDELL, E. P. DYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

